Marathon

So I need to run another marathon. I took some time off from running to concentrate on cycling, but now I want to run again. It's the perfect time... offseason, cool weather. There's nothing like a nice long run on a cool morning. A Jan/Feb marathon gives me enough time to train, and it's over with before the cycling season takes off again. Here are the one's I'm considering:

• PF Chang's Rock and Roll Marathon Phoenix, AZ on 1/13
• Tybee Marathon Tybee Island, GA on 2/2
• Myrtle Beach Marathon in SC on 2/16
• Mardi Gras Marathon New Orleans, LA on 2/24

I'm leaning towards Phoenix (Sonja and I have friends there) or New Orleans (for various reasons). Any thoughts?